Wariness Greets Return of Biodiesel, Officials Say Clog Problem Solved

[Pioneer Press] Biodiesel is back in fuel tanks across Minnesota after a winter of discontent with the soybean-based fuel. But this time, it’s accompanied by tougher quality rules, more state-sponsored tests and greater wariness from users. In December, poor-quality biodiesel was blended into Minnesota’s diesel supply, causing a wave of clogged fuel filters and angry truckers. In response, state officials temporarily lifted a new state law requiring that biodiesel be blended into every gallon of diesel sold.

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